Issue #2: The blog page can be full width, for now

source/blog.html.twig

@@ -5,6 +5,8 @@ nav: blog
 use:
   - posts
 ---
+{% block content_wrapper %}
+  <div class="col-md-12">
     {% block content %}
       <h1>Blog</h1>
 
@@ -16,5 +18,7 @@ use:
         </ul>
       {% endif %}
     {% endblock %}
+  </div> {# .col.md-12 #}
+{% endblock %}
 
 {% block sidebar %}{% endblock %}